Implements or apparatus for applying pushing or pulling force – Thill-coupling jack
Patent
1976-03-05
1977-05-31
Smith, Al Lawrence
Implements or apparatus for applying pushing or pulling force
Thill-coupling jack
B25C 1100
Patent
active
040265200
ABSTRACT:
A manually operated surgical staple extractor comprising a pliers-like tool having first and second handle elements pivotally joined together and swingable between open and closed positions. The first handle element terminates at its forward end in a pair of elongated anvils in parallel spaced relationship. The forward ends of the anvils are angled toward each with their front-most tips substantially contiguous. The rearward ends of said anvils are provided with aligned notches, the first handle element providing a steep upwardly and rearwardly sloping surface adjacent each of the notches. The second handle element is operatively connected to a thin blade means shorter than the anvils. When the first and second handle elements are in their open position, the lower edge of the blade means lies above the anvils. When the handle elements are shifted to their closed position, the blade is pivoted downwardly such that its lower edge passes between the anvils to a position therebelow. The blade means is sufficiently thin that, as it passes between the anvils, there is clearance between the blade means and each anvil substantially equal to the diameter of the crown portion of a staple.
REFERENCES:
patent: 2202984 (1940-06-01), Drypolcher
patent: 2400988 (1946-05-01), Goessel
patent: 2762604 (1956-09-01), Misson
Rothfuss Robert G.
Stone Russell C.
Wykoff Matthew H.
Senco Products Inc.
Smith Al Lawrence
Watson Robert C.
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